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176 lines
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HTML
176 lines
5.5 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Retrieves a list of foreign keys</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.odbc-foreignkeys" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">odbc_foreignkeys</h1>
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<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">odbc_foreignkeys</span> — <span class="dc-title">Retrieves a list of foreign keys</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.odbc-foreignkeys-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>odbc_foreignkeys</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$connection_id</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$pk_qualifier</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$pk_owner</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$pk_table</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$fk_qualifier</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$fk_owner</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$fk_table</code></span>
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) : <span class="type">resource</span></div>
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<p class="para rdfs-comment">
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Retrieves a list of foreign keys in the specified table or a list of
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foreign keys in other tables that refer to the primary key in the
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specified table
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.odbc-foreignkeys-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">connection_id</code></dt>
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<dd>
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<p class="para">ODBC 连接标识符，详见
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<span class="function"><a href="odbc_connect.html" class="function">odbc_connect()</a></span>。</p>
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</dd>
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<dt>
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<code class="parameter">pk_qualifier</code></dt>
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<dd>
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<p class="para">
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The primary key qualifier.
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</p>
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</dd>
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<dt>
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<code class="parameter">pk_owner</code></dt>
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<dd>
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<p class="para">
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The primary key owner.
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</p>
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</dd>
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<dt>
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<code class="parameter">pk_table</code></dt>
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<dd>
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<p class="para">
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The primary key table.
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</p>
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</dd>
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<dt>
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<code class="parameter">fk_qualifier</code></dt>
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<dd>
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<p class="para">
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The foreign key qualifier.
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</p>
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</dd>
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<dt>
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<code class="parameter">fk_owner</code></dt>
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<dd>
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<p class="para">
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The foreign key owner.
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</p>
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</dd>
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<dt>
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<code class="parameter">fk_table</code></dt>
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<dd>
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<p class="para">
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The foreign key table.
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.odbc-foreignkeys-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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Returns an ODBC result identifier 或者在失败时返回 <strong><code>FALSE</code></strong>.
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</p>
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<p class="para">
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The result set has the following columns:
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<ul class="itemizedlist">
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<li class="listitem"><span class="simpara">PKTABLE_QUALIFIER</span></li>
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<li class="listitem"><span class="simpara">PKTABLE_OWNER</span></li>
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<li class="listitem"><span class="simpara">PKTABLE_NAME</span></li>
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<li class="listitem"><span class="simpara">PKCOLUMN_NAME</span></li>
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<li class="listitem"><span class="simpara">FKTABLE_QUALIFIER</span></li>
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<li class="listitem"><span class="simpara">FKTABLE_OWNER</span></li>
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<li class="listitem"><span class="simpara">FKTABLE_NAME</span></li>
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<li class="listitem"><span class="simpara">FKCOLUMN_NAME</span></li>
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<li class="listitem"><span class="simpara">KEY_SEQ</span></li>
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<li class="listitem"><span class="simpara">UPDATE_RULE</span></li>
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<li class="listitem"><span class="simpara">DELETE_RULE</span></li>
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<li class="listitem"><span class="simpara">FK_NAME</span></li>
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<li class="listitem"><span class="simpara">PK_NAME</span></li>
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</ul>
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</p>
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<p class="simpara">
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If <code class="parameter">pk_table</code> contains a table name,
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<span class="function"><strong>odbc_foreignkeys()</strong></span> returns a result set
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containing the primary key of the specified table and all of the
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foreign keys that refer to it.
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</p>
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<p class="simpara">
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If <code class="parameter">fk_table</code> contains a table name,
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<span class="function"><strong>odbc_foreignkeys()</strong></span> returns a result set
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containing all of the foreign keys in the specified table and the
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primary keys (in other tables) to which they refer.
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</p>
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<p class="simpara">
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If both <code class="parameter">pk_table</code> and
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<code class="parameter">fk_table</code> contain table names,
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<span class="function"><strong>odbc_foreignkeys()</strong></span> returns the foreign keys in
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the table specified in <code class="parameter">fk_table</code> that refer
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to the primary key of the table specified in
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<code class="parameter">pk_table</code>. This should be one key at most.
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</p>
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</div>
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</div></div></div></body></html> |